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STAFF

Principles and Department Heads


The heart of any quality company is the staff. ATS RheoSystems and REOLOGICA Instruments have a cadre of the best scientists, engineers, and research and development experts in the world today, providing professionalism, experience and innovation. All of our technical employees have direct, hands-on operational experience, providing sensitivity and insight to the operational issues.

Our technical talent covers the complete vertical spectrum in rheological applications, method development, installation, maintenance, technical support and customer service.


ATS RheoSystems and REOLOGICA Instruments, Inc.

Owners and Department Heads

Steven M. Colo, President - Graduate Engineer from Rutgers University with over twenty five years experience in the field of rheology and analytical instrumentation. Formerly employed at Bohlin Reologi, Inc., Rheometrics and Perkin Elmer. Steven focuses on corporate direction, future initiatives, and continuous improvements for both ATS RheoSystems and REOLOGICA Instruments.

Dr. August J. Colo, VP Finance - Ed.D from Rutgers. Graduate degrees in Biology, Biotechnology, and Administration from Rutgers, Montclair, and Temple Universities with over forty-five years experience. Former administrator and professor at MCC. Gus heads the Human Resources, Administration, and Finance Departments.

Yazmin Y. Piszel, VP, Operations - Graduate degree in Chemistry from Arcadia University with over ten years technical support and field service experience. Yazmin is responsible for leading the Technical Staff, coordinating and scheduling our Technical Support Department and Instrument and Rheology Training.

Rheologists on Staff

Dr. Paul Tong, Ph.D. in Materials Science from University of Wisconsin-Madison with a strong academic and industrial background in rheology. His expertise also includes polymer characterization, processing and mechanical behavior. A 25 year industrial research career has focused on applying rheology to the characterization and processing of complex materials. Experienced with a wide range of rheological techniques, highlighted by novel methodology development, Paul has worked hands-on with polymer melts, polymer solutions, suspensions, inks and adhesives.

Peter K.W. Herh, Graduate degree in Polymer Physics and Materials Science from Rutgers University with more than 40 years rheological experience covering the full spectrum of materials and measurement techniques. Peter’s work history in the field of rheology covers both academia at Rutgers University, and industrial at Rheometrics, Bohlin Reologi, and ATS RheoSystems.

Dr. Jared A. Tatum, Ph.D. in Chemical Engineering from Clemson University. Jared has worked with a variety of different rheological systems including elastomer and thermoplastic melts, rubber compounds, particle composites, and polymer solutions. His 10+ years experience in the field of rheology is extensive, with a concentration on rotational and capillary rheology measurements, extensional viscosity, and property/structure relationships. An additional area of interest is optical techniques for measuring flow fields such as Particle Image Velocimetry (PIV) and their applications to understanding how different fluid properties affect flow fields.

Dr. Tien Dao, Ph.D. in Chemical Engineering from Texas A&M University with research on polymer surface and polymer rheology. Post Doctorate at Michigan State University with research on nanoparticles suspension in polymer melts and their effect on thermal and rheological properties. Tien's areas of expertise also include thermal analysis, and polymer characterization and processing. Throughout a 10+ year rheology career, his work experience covers a wide range of polymeric rheological research, coupled with practical experience with polymer melts, polymer solution, and suspensions. Additional areas of interest are polymer birefringence and polymer-surface interaction and their flow properties.

Dr. Allan X. Ye, Ph.D. in Chemical Engineering from Monash University (Australia), focusing on the shear and extensional rheology of polymers including polymer blends, long-chain-branched polymers and block copolymers. During his postdoctoral career at the Levich Institute, City College of New York, Allan was involved in several projects covering the rheology of concentrated suspensions, fumed silica gels and granular materials. Throughout his 10+ years rheological experience, Allan’s research focused on the relationship between the microstructure and macroscopic properties of materials, with a focus on optimizing the processing of complex fluids.


REOLOGICA Instruments, AB and REOLOGICA Instruments, Inc.

Owners and Department Heads

Mats Borg, Managing Director - Over fifteen years experience in multinational business development and marketing of scientific instruments. VP Sales and Marketing for Bohlin Reologi AB for five years.

Dr. Leif Bohlin, Technical Director - Over thirty years rheological experience, founder of Bohlin Reologi AB in 1983, and creator of the VOR and CS Rheometers. Mathematical and theoretical physics background.

Lars Palm, VP Product Development - Over twenty-five years experience in rheology, engineering background, LTH University, Sweden. Co-developer of the VOR Rheometer with Leif Bohlin in 1980. Formerly employed by Bohlin Reologi AB for twelve years.

Dr. Kaj Hedman, VP Software Development - Over thirty years experience working with practical rheology and software development. Graduate of The University of Gothenbourg, Sweden. Worked with Dr. Leif Bohlin for twelve years at Bohlin Reologi AB.

Keneth Edmark, Production Manager - Degree in Electrical Engineering. Twenty years rheological instrumentation experience. Formerly employed with Bohlin Reologi AB for twelve years.

Matts Larsson, Applications Manager - Degree in Civil Engineering and Chemistry. Sixteen years experience in rheological instrumentation, applications, and method development. Formerly employed with Bohlin Reologi AB and Oleinitec AB a distributor for Paar Physica in Scandinavia.